Qualityair Engenharia started offering maintenance services in building installations, covering the areas of Air Conditioning, Electrical, Hydraulics and Civil. They provide Building Maintenance, Engineering, HVAC Maintenance, Technical Assistance in Air Conditioning, Air Conditioning Installation, Maintenance in VRF System.

Quantech has a proven track record of delivering high-performance chillers with speed, efficiency, and reliability in mind. They are led by the customers and work tirelessly to provide optimized HVAC solutions that address the facility needs. They provide smaller, lighter, quieter chillers resulting in lower installation costs.

QEL is a pioneer in manufacturing toxic and combustible gas detection equipment. With a diverse product offering, they are able to satisfy both commercial and industrial toxic and combustible gas detection applications.

R. Williamson & Associates has been providing industry with clean, comfortable air. They provide an interactive experience, having engineers and technical sales representatives on staff with more than 135 years of air systems design experience.

R.S. Andrews has been in the business of delivering smiles since 1968. They’re proud of the decades of expert and dependable home comfort services they’ve provided to countless homeowners throughout the Greater Atlanta area, Savannah, and the Hilton Head area of South Carolina.

Ranger Pumps is a privately held corporation that was founded in 1989 in Memphis, Tennessee. Ranger has become a domestic and international pump supplier. They pride themselves on manufacturing pumps in the USA from parts made in the USA.

Rapid Engineering is an Industrial and commercial HVAC manufacturer. They manufacture make-up air and custom rooftop units, indirect-fired heaters, make-up air heaters, evaporative coolers, and electronic control systems for direct fired air handlers.

Rapid Recovery provides refrigerant recovery services for the HVAC, refrigeration, demolition, and marine industries. Projects range in size from single residential split systems to chilling systems operating on tens of thousands of pounds, to projects with thousands of units.

Rapid Water Technologies' patent-pending nanobubble generator removes and prevents the buildup of biofilm in commercial and industrial water use.

Ronald Chambless has owned RC's A/C & Heating since 1994 when he began his company from his home functioning from the back of the little Mazda pickup.

Reece Group offers a wide variety of products to reputable brands supplying mechanical services, air conditioning, spare parts and heating and cooling. They also provide dedicated support and technical expertise for their products.

Reed Manufacturing provides Tubing cutters and cutter wheels, plastic pipe tools, power drives, groovers, threaders and dies, vises, water services tools/machines, large diameter pipe tools, wrenches, including specialty wrenches.

Reedy Industries is a rapidly growing commercial HVAC and building controls company that is transforming the industry. Founded in 1930, we’ve grown by providing exceptional service and unprecedented opportunities for HVAC company owners, their employees, and customers.

REFCOLD India is an initiative of ISHRAE & NurenbergMesse India, which has been actively working towards growth Refrigeration & Cold Chain industry with an objective to bring forward the best technology solutions and increase the overall growth of this sector.

Reflectix Inc. are manufacturers of duct liner, duct/pipe insulation, outdoor duct insulation, and concrete slab insulations.

RefPlus is a world-renowned manufacturer of refrigeration products. At the forefront of the latest technological innovations, their equipment combines performance and reliability.

Refricenter International is a wholesaler/exporter of heating, ventilation and air conditioning parts, supplies and equipment.

Refrigerant Services provides refrigerant collection, reclamation and disposal of surplus refrigerants and maintains a large inventory of refrigerant recovery cylinders. The Company has since developed a number of patented and patent pending technologies for the reprocessing of refrigerants.

Refrigeration Design Technologies (RDT) designs and manufactures refrigeration systems for food service operations. RDT has equipment in many restaurants, hotels, casinos, universities, hospitals, prisons, corporate dining facilities, sporting stadiums and theme parks.

Refrigeration Research Inc. are manufacturers of high-quality commercial/industrial refrigeration and air conditioning components. Refrigeration Research uses hydrogen brazing to assemble tanks, which ensures a clean, contaminant-free process – helping to avoid problems. They also provide personal, accessible service.

RefTec International manufactures and supplies the heating, ventilating, and air conditioning industry with standard and customized refrigerant recovery, purge, and chiller pressurizing equipment. These units, among others, are used as service tools in the HVACR industry.

REFTECO offers a wide range of tailor made chillers suitable for industrial refrigeration, commercial refrigeration and process cooling (oil & gas industry, ice rinks, etc.). The product lines are available for indoor or outdoor installations and for ammonia or HFC refrigerants. All product ranges are designed to provide low energy consumption, reduced refrigerant charge and low maintenance cost.

Regin HVAC Products Inc. are manufacturers of leak detectors, draft gauges, damper hardware, humidistats, expansion joints, air leakage testers, relay testers, leak test tools, hygrometers, and voltmeters.

REHAU is a manufacturer of radiant heating/cooling and geothermal systems that distribute energy uniformly and efficiently. All their systems are supported by REHAU's reliable RAUPEX® crosslinked polyethylene (PEXa) pipes.

Reliable Architectural Products is a pioneer in louvers, hurricane impact louvers for PTAC applications, penthouses, screens, brick and block vents, dampers and sunshades.

Reliable Controls Corporation specializes in the design and manufacture of internet-connected building controls and green BACnet building automation systems. They provide simple, flexible, and sustainable controls which balance the comfort, efficiency, and greenhouse gas reductions of commercial buildings all around the world.

Reliable Heating & Air has been serving all of Metro Atlanta's communities offering heating, cooling, plumbing, and electrical services, indoor air quality, duct cleaning, insulation, and home and building performance for both residential and commercial customers.

Since 1961, Reliable Louvers has been supplying architectural and mechanical louvers for the construction and hospitality industries. With a state-of-the-art paint and anodizing finish lines, in-house full-service sheet metal shop and a full-time engineering staff, they have the capabilities to meet any needs.

RWC and its family of brands develop safe, sustainable, and efficient solutions to help shape a better world. We engineer and innovate products to integrate seamlessly within the modern built environment. RWC and its family of brands transform performance and efficiency for plumbing and heating, smart homes, and specialist industries around the world.

Rensair is a specialist in air purification, protecting, and enhancing lives through clean air. Its patented technology combines H13 HEPA filtration with germicidal UVC light, was developed to meet the strict standards of Scandinavian hospitals, and is independently validated by scientific research laboratories. Rensair air purification units meet all the standards recommended by the US EPA and UK SAGE committee in their respective reports.